zfgrep:tldr:e65d6

The command "zfgrep --count ${search_string} ${filename}" is used to search for a specific string (specified by ${search_string}) in a file (specified by ${filename}).

Here's a breakdown of the command:

• "zfgrep" is the name of the command-line utility. It is a variant of the "grep" command that performs a fast, fixed-string search rather than a regular expression search.

• "--count" is an option used with the "zfgrep" command. It instructs the command to print only the count of matching lines, rather than printing the actual matching lines.

• "${search_string}" is a placeholder for the string you want to search for. You need to replace it with the actual string you want to find in the file.

• "${filename}" is another placeholder for the name of the file you want to search in. You need to replace it with the actual name of the file you want to search in.

When the command is executed, it will search for the specified string in the specified file and return the count of how many times the string occurs in the file. The actual lines containing the string will not be displayed.